# CrowdSense vs QR Code Reader、Barcode Scanner

The clearest difference is rating: CrowdSense at 5.0 against QR Code Reader、Barcode Scanner's 4.5. CrowdSense also leads on iOS requirement (12.0 vs 15.5). QR Code Reader、Barcode Scanner's advantage is ratings volume (12 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CrowdSense holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: QR Code Reader、Barcode Scanner has 12 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 4, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | CrowdSense | QR Code Reader、Barcode Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/crowdsense/id930853606/reviews)** | [4.5 (12 ratings)](https://appshunter.io/ios/app/qr-code-readerbarcode-scanner/id6471344894/reviews) |
| Number of ratings | 1 | **12** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 2 MB | 69 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Kleomenis Katevas](https://appshunter.io/developer/526742174) | [Md Sajedur Rahaman](https://appshunter.io/developer/1586019019) |

## What reviewers say

### CrowdSense

[App page](https://appshunter.io/ios/app/crowdsense/id930853606)

This app allows researchers to collect rich mobile sensor data from iOS devices for studies. It prioritizes user control and transparency, requiring explicit permission before activating any sensor. Data collected can be easily accessed and exported for analysis.

**Highlights:** Continuous sensing with rich mobile sensor data, User control and explicit sensor permission, Support for a wide range of device sensors, Easy data access and export, Secure data sharing and USB export, Built on open-source SensingKit framework

**In-app purchases:** none


### QR Code Reader、Barcode Scanner

[App page](https://appshunter.io/ios/app/qr-code-readerbarcode-scanner/id6471344894)

Easily scan and generate QR codes and barcodes for various information types like Wi-Fi, websites, and text. Save your scan history and share codes instantly via popular social media and email platforms. Supports low-light scanning with a flashlight.

**Highlights:** Scan QR Codes & Barcodes, Create QR Codes & Barcodes, Flashlight support for low-light, Automatic scan history, Share codes via email and social media, Import images for scanning

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CrowdSense free?

CrowdSense is free to download, with no in-app purchases.

### Is QR Code Reader、Barcode Scanner free?

QR Code Reader、Barcode Scanner is free to download, with no in-app purchases.

### Which has better reviews, CrowdSense or QR Code Reader、Barcode Scanner?

CrowdSense is rated higher. CrowdSense averages 5.0 out of 5 from 1 ratings, while QR Code Reader、Barcode Scanner averages 4.5 from 12 ratings.

### Do CrowdSense or QR Code Reader、Barcode Scanner have ads?

Neither CrowdSense nor QR Code Reader、Barcode Scanner shows ads.

### Which is updated more often, CrowdSense or QR Code Reader、Barcode Scanner?

CrowdSense ships an update every 2 months, and QR Code Reader、Barcode Scanner every 2 months. Most recently, CrowdSense was updated on October 4, 2026 and QR Code Reader、Barcode Scanner on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*